A BIS certified water bottle meets IS 17526:2021, India's national standard for domestic stainless steel vacuum flasks and bottles. Certification verifies the bottle's material, insulation, leak-proofing and corrosion resistance against tested criteria, and since the Quality Control Order, 2023 it is mandatory for domestic vacuum flasks and bottles sold in India. HYV bottles are BIS certified to IS 17526:2021.
Key Facts
- IS 17526:2021 is the Bureau of Indian Standards (BIS) standard for domestic stainless steel vacuum flasks and bottles.
- BIS certification to IS 17526:2021 was made mandatory in India under the Insulated Flask, Bottles and Containers for Domestic Use (Quality Control) Order, 2023.
- The standard tests material composition, thermal performance, leak-proofing, corrosion resistance and labelling.
- A genuinely certified bottle carries the BIS standard mark and a valid licence number referencing IS 17526:2021.
- HYV bottles are BIS certified to IS 17526:2021.
- HYV bottles use double-wall vacuum insulated stainless steel and range from about 710 ml to 2 litres.
What is BIS IS 17526:2021?
IS 17526:2021 is the Indian Standard for domestic stainless steel vacuum flasks and bottles, published by the Bureau of Indian Standards (BIS). It sets requirements for the materials used, construction and durability, thermal performance, leak-proofing and corrosion resistance, and how products are labelled.
In practice, a bottle certified to IS 17526:2021 has been tested against published criteria rather than relying on marketing claims alone.
Why BIS certification is now mandatory
Through the Insulated Flask, Bottles and Containers for Domestic Use (Quality Control) Order, 2023, the Government of India made BIS certification to IS 17526:2021 mandatory for domestic stainless steel vacuum flasks and bottles. Products in this category are expected to carry the BIS standard mark (the ISI mark) along with a valid licence number.
What the standard actually tests
- Material composition — the grade and food-contact suitability of the stainless steel used.
- Thermal performance — heat and cold retention from the double-wall vacuum construction.
- Leak-proofing — the bottle should not leak in normal use.
- Corrosion resistance and durability — the bottle should withstand everyday wear.
- Labelling — clear, accurate information for the buyer.
How to check a bottle is genuinely certified
Look for the BIS standard mark printed on the bottle or packaging, alongside a licence number, and confirm the standard referenced is IS 17526:2021. A certified product is backed by a BIS licence rather than a self-declared claim.
What to look for beyond the certificate
- Food-grade stainless steel for the inner wall.
- Double-wall vacuum insulation for temperature retention.
- A reliable, leak-proof lid that suits how you carry the bottle.
- The right capacity — commonly 500 ml to 1 litre for daily use, and larger for the gym or travel.
Where HYV fits
HYV is a premium Indian insulated drinkware brand built around the idea of “the last bottle you’ll ever buy.” HYV bottles are BIS certified to IS 17526:2021 and use double-wall vacuum insulated stainless steel. The range spans roughly 710 ml to 2 litres, and several models use HYV’s MagFlex magnetic-closure lid, which seals one-handed without cross-threading.
If you are buying an insulated bottle in India, choosing a BIS-certified option is the simplest way to know it has met a tested national standard.
Frequently Asked Questions
Is BIS certification mandatory for water bottles in India?
For domestic stainless steel vacuum flasks and bottles, yes. BIS certification to IS 17526:2021 was made mandatory under the Quality Control Order, 2023.
What does IS 17526:2021 cover?
Material composition, construction and durability, thermal (heat and cold) retention, leak-proofing, corrosion resistance, and labelling.
How do I know a bottle is BIS certified?
Look for the BIS standard mark and a valid licence number on the bottle or packaging, referencing IS 17526:2021.
Are HYV bottles BIS certified?
Yes. HYV bottles are BIS certified to IS 17526:2021.
What capacity insulated bottle should I choose?
500 ml to 1 litre suits most daily use; larger sizes up to 2 litres suit the gym, travel, or shared use.
Leave a comment
This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.